MHT CET · BIOLOGY · STD 12 - 5. Origin and Evolution of Life
Given below are two statements regarding evolution.
Statement-I: Selection against harmful mutation leads to a mutation balance.
Statement-II: In mutation balance, the allele frequency of harmful recessives keep on changing generation after generation.
In the light of above statements, choose the most appropriate answer from the options given below:
- A Statement-I is correct but Statement-II is incorrect
- B Both Statement-I and Statement-II are correct.
- C Both Statement-I and Statement-II are incorrect.
- D Statement-I is incorrect but Statement-[] is correct.
Answer & Solution
Correct Answer
(A) Statement-I is correct but Statement-II is incorrect
Step-by-step Solution
Detailed explanation
In a mutation balance, the allele frequency of harmful recessives does not keep changing generation after generation. Instead, they are maintained at low frequencies due to the continuous selection against them.
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